UC1637-SP 用于直流电机驱动的开关模式控制器

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.

This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100-mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2

	UC1637-SP
Operating Supply (Min) (V)	5
Operating Supply (Max) (V)	36
Operating Supply Current (mA)	8.5
Peak Output Current (A)	0.4
Pin/Package	20CFP
Rating	Space

UC1637-SP 特性

QML-V Qualified, SMD 5962-89957
Rad Tolerant: 30 kRad(Si) TID(1)
- TID Dose Rate = 10 mRad/sec
Single or Dual Supply Operation
±2.5-V to ±20-V Input Supply Range
±5% Initial Oscillator Accuracy; ±10% Over Temperature
Pulse-by-Pulse Current Limiting
Under-Voltage Lockout
Shutdown Input with Temperature Compensated 2.5-V Threshold
Uncommitted PWM Comparators for Design Flexibility
Dual 100-mA Source/Sink Output Drivers

UC1637-SP 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
5962-8995701VSA	ACTIVE	-55 to 125	441.25 \| 100u	CFP (W) \| 20	25 \| TUBE

UC1637-SP 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
5962-8995701VSA	TBD	Call TI	N/A for Pkg Type	5962-8995701VSA	5962-8995701VSA